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Finding the Fourth Proportional to 113,710.32, 156,902.40 and 65,953.80

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Solution

The fourth proportional to 113,710.32, 156,902.40 and 65,953.80 is: 91,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,710.32 : 156,902.40 = 65,953.80 : x
  2. Step 2: Convert to fraction form
    113,710.32/156,902.40 = 65,953.80/x
  3. Step 3: Cross multiply
    113,710.32x = 156,902.40 × 65,953.80
  4. Step 4: Simplify right side
    113,710.32x = 10,348,309,509.12
  5. Step 5: Solve for x
    x = 10,348,309,509.12/113,710.32
  6. Step 6: Final answer
    x = 91,005.90

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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.