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Finding the Fourth Proportional to 112,803.48, 155,669.04 and 62,502.48

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Solution

The fourth proportional to 112,803.48, 155,669.04 and 62,502.48 is: 86,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,803.48 : 155,669.04 = 62,502.48 : x
  2. Step 2: Convert to fraction form
    112,803.48/155,669.04 = 62,502.48/x
  3. Step 3: Cross multiply
    112,803.48x = 155,669.04 × 62,502.48
  4. Step 4: Simplify right side
    112,803.48x = 9,729,701,059.22
  5. Step 5: Solve for x
    x = 9,729,701,059.22/112,803.48
  6. Step 6: Final answer
    x = 86,253.55

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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.