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Finding the Fourth Proportional to 173,712.40, 260,374.20 and 98,868.40

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Solution

The fourth proportional to 173,712.40, 260,374.20 and 98,868.40 is: 148,191.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,712.40 : 260,374.20 = 98,868.40 : x
  2. Step 2: Convert to fraction form
    173,712.40/260,374.20 = 98,868.40/x
  3. Step 3: Cross multiply
    173,712.40x = 260,374.20 × 98,868.40
  4. Step 4: Simplify right side
    173,712.40x = 25,742,780,555.28
  5. Step 5: Solve for x
    x = 25,742,780,555.28/173,712.40
  6. Step 6: Final answer
    x = 148,191.96

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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.