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Finding the Fourth Proportional to 67,691,702.90, 101,537,554.35 and 64,743,043.70

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Solution

The fourth proportional to 67,691,702.90, 101,537,554.35 and 64,743,043.70 is: 97,114,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,691,702.90 : 101,537,554.35 = 64,743,043.70 : x
  2. Step 2: Convert to fraction form
    67,691,702.90/101,537,554.35 = 64,743,043.70/x
  3. Step 3: Cross multiply
    67,691,702.90x = 101,537,554.35 × 64,743,043.70
  4. Step 4: Simplify right side
    67,691,702.90x = 6,573,850,318,473,175
  5. Step 5: Solve for x
    x = 6,573,850,318,473,175/67,691,702.90
  6. Step 6: Final answer
    x = 97,114,565.55

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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.