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Finding the Fourth Proportional to 113,416.98, 156,515.98 and 62,434.84

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Solution

The fourth proportional to 113,416.98, 156,515.98 and 62,434.84 is: 86,160.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,416.98 : 156,515.98 = 62,434.84 : x
  2. Step 2: Convert to fraction form
    113,416.98/156,515.98 = 62,434.84/x
  3. Step 3: Cross multiply
    113,416.98x = 156,515.98 × 62,434.84
  4. Step 4: Simplify right side
    113,416.98x = 9,772,050,168.74
  5. Step 5: Solve for x
    x = 9,772,050,168.74/113,416.98
  6. Step 6: Final answer
    x = 86,160.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.