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Finding the Fourth Proportional to 86,341,486.80, 129,493,567.80 and 37,819,246.80

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Solution

The fourth proportional to 86,341,486.80, 129,493,567.80 and 37,819,246.80 is: 56,720,695.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,341,486.80 : 129,493,567.80 = 37,819,246.80 : x
  2. Step 2: Convert to fraction form
    86,341,486.80/129,493,567.80 = 37,819,246.80/x
  3. Step 3: Cross multiply
    86,341,486.80x = 129,493,567.80 × 37,819,246.80
  4. Step 4: Simplify right side
    86,341,486.80x = 4,897,349,199,640,733
  5. Step 5: Solve for x
    x = 4,897,349,199,640,733/86,341,486.80
  6. Step 6: Final answer
    x = 56,720,695.71

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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.