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Finding the Fourth Proportional to 84,696,337.80, 127,044,506.70 and 27,194,421.60

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Solution

The fourth proportional to 84,696,337.80, 127,044,506.70 and 27,194,421.60 is: 40,791,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,696,337.80 : 127,044,506.70 = 27,194,421.60 : x
  2. Step 2: Convert to fraction form
    84,696,337.80/127,044,506.70 = 27,194,421.60/x
  3. Step 3: Cross multiply
    84,696,337.80x = 127,044,506.70 × 27,194,421.60
  4. Step 4: Simplify right side
    84,696,337.80x = 3,454,901,877,163,825
  5. Step 5: Solve for x
    x = 3,454,901,877,163,825/84,696,337.80
  6. Step 6: Final answer
    x = 40,791,632.40

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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.