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Finding the Fourth Proportional to 113,317.17, 156,368.16 and 65,573.61

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Solution

The fourth proportional to 113,317.17, 156,368.16 and 65,573.61 is: 90,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,317.17 : 156,368.16 = 65,573.61 : x
  2. Step 2: Convert to fraction form
    113,317.17/156,368.16 = 65,573.61/x
  3. Step 3: Cross multiply
    113,317.17x = 156,368.16 × 65,573.61
  4. Step 4: Simplify right side
    113,317.17x = 10,253,624,740.26
  5. Step 5: Solve for x
    x = 10,253,624,740.26/113,317.17
  6. Step 6: Final answer
    x = 90,486.06

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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.