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Finding the Fourth Proportional to 125,670,679.80, 188,506,019.70 and 34,794,268.80

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Solution

The fourth proportional to 125,670,679.80, 188,506,019.70 and 34,794,268.80 is: 52,191,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,670,679.80 : 188,506,019.70 = 34,794,268.80 : x
  2. Step 2: Convert to fraction form
    125,670,679.80/188,506,019.70 = 34,794,268.80/x
  3. Step 3: Cross multiply
    125,670,679.80x = 188,506,019.70 × 34,794,268.80
  4. Step 4: Simplify right side
    125,670,679.80x = 6,558,929,119,859,894
  5. Step 5: Solve for x
    x = 6,558,929,119,859,894/125,670,679.80
  6. Step 6: Final answer
    x = 52,191,403.20

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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.