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Finding the Fourth Proportional to 63,893,790.80, 95,775,367.80 and 31,495,864.40

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Solution

The fourth proportional to 63,893,790.80, 95,775,367.80 and 31,495,864.40 is: 47,211,598.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,893,790.80 : 95,775,367.80 = 31,495,864.40 : x
  2. Step 2: Convert to fraction form
    63,893,790.80/95,775,367.80 = 31,495,864.40/x
  3. Step 3: Cross multiply
    63,893,790.80x = 95,775,367.80 × 31,495,864.40
  4. Step 4: Simplify right side
    63,893,790.80x = 3,016,527,997,088,926
  5. Step 5: Solve for x
    x = 3,016,527,997,088,926/63,893,790.80
  6. Step 6: Final answer
    x = 47,211,598.49

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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.