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Finding the Fourth Proportional to 112,351.40, 168,411.90 and 65,580.20

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Solution

The fourth proportional to 112,351.40, 168,411.90 and 65,580.20 is: 98,303.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,351.40 : 168,411.90 = 65,580.20 : x
  2. Step 2: Convert to fraction form
    112,351.40/168,411.90 = 65,580.20/x
  3. Step 3: Cross multiply
    112,351.40x = 168,411.90 × 65,580.20
  4. Step 4: Simplify right side
    112,351.40x = 11,044,486,084.38
  5. Step 5: Solve for x
    x = 11,044,486,084.38/112,351.40
  6. Step 6: Final answer
    x = 98,303.06

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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.