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Finding the Fourth Proportional to 100,851.40, 151,277.10 and 98,259.40

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Solution

The fourth proportional to 100,851.40, 151,277.10 and 98,259.40 is: 147,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,851.40 : 151,277.10 = 98,259.40 : x
  2. Step 2: Convert to fraction form
    100,851.40/151,277.10 = 98,259.40/x
  3. Step 3: Cross multiply
    100,851.40x = 151,277.10 × 98,259.40
  4. Step 4: Simplify right side
    100,851.40x = 14,864,397,079.74
  5. Step 5: Solve for x
    x = 14,864,397,079.74/100,851.40
  6. Step 6: Final answer
    x = 147,389.10

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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.