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Finding the Fourth Proportional to 98,530.20, 147,752.10 and 39,346.20

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Solution

The fourth proportional to 98,530.20, 147,752.10 and 39,346.20 is: 59,002.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,530.20 : 147,752.10 = 39,346.20 : x
  2. Step 2: Convert to fraction form
    98,530.20/147,752.10 = 39,346.20/x
  3. Step 3: Cross multiply
    98,530.20x = 147,752.10 × 39,346.20
  4. Step 4: Simplify right side
    98,530.20x = 5,813,483,677.02
  5. Step 5: Solve for x
    x = 5,813,483,677.02/98,530.20
  6. Step 6: Final answer
    x = 59,002.05

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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.