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Finding the Fourth Proportional to 78,603.12, 108,232.08 and 59,250.16

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Solution

The fourth proportional to 78,603.12, 108,232.08 and 59,250.16 is: 81,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,603.12 : 108,232.08 = 59,250.16 : x
  2. Step 2: Convert to fraction form
    78,603.12/108,232.08 = 59,250.16/x
  3. Step 3: Cross multiply
    78,603.12x = 108,232.08 × 59,250.16
  4. Step 4: Simplify right side
    78,603.12x = 6,412,768,057.13
  5. Step 5: Solve for x
    x = 6,412,768,057.13/78,603.12
  6. Step 6: Final answer
    x = 81,584.14

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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.