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Finding the Fourth Proportional to 135,852.55, 187,482.57 and 75,424.03

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Solution

The fourth proportional to 135,852.55, 187,482.57 and 75,424.03 is: 104,088.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,852.55 : 187,482.57 = 75,424.03 : x
  2. Step 2: Convert to fraction form
    135,852.55/187,482.57 = 75,424.03/x
  3. Step 3: Cross multiply
    135,852.55x = 187,482.57 × 75,424.03
  4. Step 4: Simplify right side
    135,852.55x = 14,140,690,984.16
  5. Step 5: Solve for x
    x = 14,140,690,984.16/135,852.55
  6. Step 6: Final answer
    x = 104,088.52

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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.