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Finding the Fourth Proportional to 108,792.32, 150,132.99 and 61,045.55

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Solution

The fourth proportional to 108,792.32, 150,132.99 and 61,045.55 is: 84,242.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,792.32 : 150,132.99 = 61,045.55 : x
  2. Step 2: Convert to fraction form
    108,792.32/150,132.99 = 61,045.55/x
  3. Step 3: Cross multiply
    108,792.32x = 150,132.99 × 61,045.55
  4. Step 4: Simplify right side
    108,792.32x = 9,164,950,988.95
  5. Step 5: Solve for x
    x = 9,164,950,988.95/108,792.32
  6. Step 6: Final answer
    x = 84,242.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.