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Finding the Fourth Proportional to 652,545,805.79, 978,809,124.74 and 161,259,062.22

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Solution

The fourth proportional to 652,545,805.79, 978,809,124.74 and 161,259,062.22 is: 241,886,224.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,545,805.79 : 978,809,124.74 = 161,259,062.22 : x
  2. Step 2: Convert to fraction form
    652,545,805.79/978,809,124.74 = 161,259,062.22/x
  3. Step 3: Cross multiply
    652,545,805.79x = 978,809,124.74 × 161,259,062.22
  4. Step 4: Simplify right side
    652,545,805.79x = 157,841,841,547,145,120
  5. Step 5: Solve for x
    x = 157,841,841,547,145,120/652,545,805.79
  6. Step 6: Final answer
    x = 241,886,224.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.