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Finding the Fourth Proportional to 91,244.01, 136,952.12 and 46,901.90

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Solution

The fourth proportional to 91,244.01, 136,952.12 and 46,901.90 is: 70,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,244.01 : 136,952.12 = 46,901.90 : x
  2. Step 2: Convert to fraction form
    91,244.01/136,952.12 = 46,901.90/x
  3. Step 3: Cross multiply
    91,244.01x = 136,952.12 × 46,901.90
  4. Step 4: Simplify right side
    91,244.01x = 6,423,314,637.03
  5. Step 5: Solve for x
    x = 6,423,314,637.03/91,244.01
  6. Step 6: Final answer
    x = 70,397.11

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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.