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Finding the Fourth Proportional to 610,547.79, 915,865.41 and 161,264.18

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Solution

The fourth proportional to 610,547.79, 915,865.41 and 161,264.18 is: 241,907.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,547.79 : 915,865.41 = 161,264.18 : x
  2. Step 2: Convert to fraction form
    610,547.79/915,865.41 = 161,264.18/x
  3. Step 3: Cross multiply
    610,547.79x = 915,865.41 × 161,264.18
  4. Step 4: Simplify right side
    610,547.79x = 147,696,279,754.69
  5. Step 5: Solve for x
    x = 147,696,279,754.69/610,547.79
  6. Step 6: Final answer
    x = 241,907.81

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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.