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Finding the Fourth Proportional to 98,169.40, 147,254.10 and 67,065.40

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Solution

The fourth proportional to 98,169.40, 147,254.10 and 67,065.40 is: 100,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,169.40 : 147,254.10 = 67,065.40 : x
  2. Step 2: Convert to fraction form
    98,169.40/147,254.10 = 67,065.40/x
  3. Step 3: Cross multiply
    98,169.40x = 147,254.10 × 67,065.40
  4. Step 4: Simplify right side
    98,169.40x = 9,875,655,118.14
  5. Step 5: Solve for x
    x = 9,875,655,118.14/98,169.40
  6. Step 6: Final answer
    x = 100,598.10

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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.