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Finding the Fourth Proportional to 170,818.66, 256,240.28 and 65,637.60

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Solution

The fourth proportional to 170,818.66, 256,240.28 and 65,637.60 is: 98,461.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,818.66 : 256,240.28 = 65,637.60 : x
  2. Step 2: Convert to fraction form
    170,818.66/256,240.28 = 65,637.60/x
  3. Step 3: Cross multiply
    170,818.66x = 256,240.28 × 65,637.60
  4. Step 4: Simplify right side
    170,818.66x = 16,818,997,002.53
  5. Step 5: Solve for x
    x = 16,818,997,002.53/170,818.66
  6. Step 6: Final answer
    x = 98,461.12

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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.