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Finding the Fourth Proportional to 99,235.40, 148,853.10 and 98,544.20

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Solution

The fourth proportional to 99,235.40, 148,853.10 and 98,544.20 is: 147,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,235.40 : 148,853.10 = 98,544.20 : x
  2. Step 2: Convert to fraction form
    99,235.40/148,853.10 = 98,544.20/x
  3. Step 3: Cross multiply
    99,235.40x = 148,853.10 × 98,544.20
  4. Step 4: Simplify right side
    99,235.40x = 14,668,609,657.02
  5. Step 5: Solve for x
    x = 14,668,609,657.02/99,235.40
  6. Step 6: Final answer
    x = 147,816.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.