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Finding the Fourth Proportional to 136,598,678.80, 204,827,159.40 and 50,292,660.40

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Solution

The fourth proportional to 136,598,678.80, 204,827,159.40 and 50,292,660.40 is: 75,412,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,598,678.80 : 204,827,159.40 = 50,292,660.40 : x
  2. Step 2: Convert to fraction form
    136,598,678.80/204,827,159.40 = 50,292,660.40/x
  3. Step 3: Cross multiply
    136,598,678.80x = 204,827,159.40 × 50,292,660.40
  4. Step 4: Simplify right side
    136,598,678.80x = 10,301,302,768,400,868
  5. Step 5: Solve for x
    x = 10,301,302,768,400,868/136,598,678.80
  6. Step 6: Final answer
    x = 75,412,901.93

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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.