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Finding the Fourth Proportional to 77,114.90, 115,672.35 and 59,597.30

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Solution

The fourth proportional to 77,114.90, 115,672.35 and 59,597.30 is: 89,395.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,114.90 : 115,672.35 = 59,597.30 : x
  2. Step 2: Convert to fraction form
    77,114.90/115,672.35 = 59,597.30/x
  3. Step 3: Cross multiply
    77,114.90x = 115,672.35 × 59,597.30
  4. Step 4: Simplify right side
    77,114.90x = 6,893,759,744.66
  5. Step 5: Solve for x
    x = 6,893,759,744.66/77,114.90
  6. Step 6: Final answer
    x = 89,395.95

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1.5x scale

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.