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Finding the Fourth Proportional to 112,752,894.80, 169,129,342.20 and 36,078,424.40

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Solution

The fourth proportional to 112,752,894.80, 169,129,342.20 and 36,078,424.40 is: 54,117,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,752,894.80 : 169,129,342.20 = 36,078,424.40 : x
  2. Step 2: Convert to fraction form
    112,752,894.80/169,129,342.20 = 36,078,424.40/x
  3. Step 3: Cross multiply
    112,752,894.80x = 169,129,342.20 × 36,078,424.40
  4. Step 4: Simplify right side
    112,752,894.80x = 6,101,920,186,384,429
  5. Step 5: Solve for x
    x = 6,101,920,186,384,429/112,752,894.80
  6. Step 6: Final answer
    x = 54,117,636.60

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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.