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Finding the Fourth Proportional to 170,615.30, 256,117.35 and 100,534.10

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Solution

The fourth proportional to 170,615.30, 256,117.35 and 100,534.10 is: 150,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,615.30 : 256,117.35 = 100,534.10 : x
  2. Step 2: Convert to fraction form
    170,615.30/256,117.35 = 100,534.10/x
  3. Step 3: Cross multiply
    170,615.30x = 256,117.35 × 100,534.10
  4. Step 4: Simplify right side
    170,615.30x = 25,748,527,276.64
  5. Step 5: Solve for x
    x = 25,748,527,276.64/170,615.30
  6. Step 6: Final answer
    x = 150,915.70

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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.