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Finding the Fourth Proportional to 139,892,510.90, 209,838,766.35 and 44,154,398.90

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Solution

The fourth proportional to 139,892,510.90, 209,838,766.35 and 44,154,398.90 is: 66,231,598.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,892,510.90 : 209,838,766.35 = 44,154,398.90 : x
  2. Step 2: Convert to fraction form
    139,892,510.90/209,838,766.35 = 44,154,398.90/x
  3. Step 3: Cross multiply
    139,892,510.90x = 209,838,766.35 × 44,154,398.90
  4. Step 4: Simplify right side
    139,892,510.90x = 9,265,304,594,101,796
  5. Step 5: Solve for x
    x = 9,265,304,594,101,796/139,892,510.90
  6. Step 6: Final answer
    x = 66,231,598.35

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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.