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Finding the Fourth Proportional to 63,576,706.72, 87,766,956.96 and 42,661,256.08

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Solution

The fourth proportional to 63,576,706.72, 87,766,956.96 and 42,661,256.08 is: 58,893,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,576,706.72 : 87,766,956.96 = 42,661,256.08 : x
  2. Step 2: Convert to fraction form
    63,576,706.72/87,766,956.96 = 42,661,256.08/x
  3. Step 3: Cross multiply
    63,576,706.72x = 87,766,956.96 × 42,661,256.08
  4. Step 4: Simplify right side
    63,576,706.72x = 3,744,248,626,232,898
  5. Step 5: Solve for x
    x = 3,744,248,626,232,898/63,576,706.72
  6. Step 6: Final answer
    x = 58,893,403.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.