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Finding the Fourth Proportional to 98,900.52, 136,482.75 and 54,188.52

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Solution

The fourth proportional to 98,900.52, 136,482.75 and 54,188.52 is: 74,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,900.52 : 136,482.75 = 54,188.52 : x
  2. Step 2: Convert to fraction form
    98,900.52/136,482.75 = 54,188.52/x
  3. Step 3: Cross multiply
    98,900.52x = 136,482.75 × 54,188.52
  4. Step 4: Simplify right side
    98,900.52x = 7,395,798,228.03
  5. Step 5: Solve for x
    x = 7,395,798,228.03/98,900.52
  6. Step 6: Final answer
    x = 74,780.18

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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.