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Finding the Fourth Proportional to 72,695,103.80, 109,042,655.70 and 26,636,883.80

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Solution

The fourth proportional to 72,695,103.80, 109,042,655.70 and 26,636,883.80 is: 39,955,325.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,695,103.80 : 109,042,655.70 = 26,636,883.80 : x
  2. Step 2: Convert to fraction form
    72,695,103.80/109,042,655.70 = 26,636,883.80/x
  3. Step 3: Cross multiply
    72,695,103.80x = 109,042,655.70 × 26,636,883.80
  4. Step 4: Simplify right side
    72,695,103.80x = 2,904,556,549,124,308
  5. Step 5: Solve for x
    x = 2,904,556,549,124,308/72,695,103.80
  6. Step 6: Final answer
    x = 39,955,325.70

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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.