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Finding the Fourth Proportional to 317,791,818.84, 476,696,673.78 and 87,760,905.24

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Solution

The fourth proportional to 317,791,818.84, 476,696,673.78 and 87,760,905.24 is: 131,643,828.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,791,818.84 : 476,696,673.78 = 87,760,905.24 : x
  2. Step 2: Convert to fraction form
    317,791,818.84/476,696,673.78 = 87,760,905.24/x
  3. Step 3: Cross multiply
    317,791,818.84x = 476,696,673.78 × 87,760,905.24
  4. Step 4: Simplify right side
    317,791,818.84x = 41,835,331,615,829,768
  5. Step 5: Solve for x
    x = 41,835,331,615,829,768/317,791,818.84
  6. Step 6: Final answer
    x = 131,643,828.24

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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.