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Finding the Fourth Proportional to 82,488,693.60, 123,733,040.40 and 73,879,349.40

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Solution

The fourth proportional to 82,488,693.60, 123,733,040.40 and 73,879,349.40 is: 110,819,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,488,693.60 : 123,733,040.40 = 73,879,349.40 : x
  2. Step 2: Convert to fraction form
    82,488,693.60/123,733,040.40 = 73,879,349.40/x
  3. Step 3: Cross multiply
    82,488,693.60x = 123,733,040.40 × 73,879,349.40
  4. Step 4: Simplify right side
    82,488,693.60x = 9,141,316,524,035,916
  5. Step 5: Solve for x
    x = 9,141,316,524,035,916/82,488,693.60
  6. Step 6: Final answer
    x = 110,819,024.10

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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.