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Finding the Fourth Proportional to 108,953.28, 163,440.54 and 42,398.82

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Solution

The fourth proportional to 108,953.28, 163,440.54 and 42,398.82 is: 63,602.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,953.28 : 163,440.54 = 42,398.82 : x
  2. Step 2: Convert to fraction form
    108,953.28/163,440.54 = 42,398.82/x
  3. Step 3: Cross multiply
    108,953.28x = 163,440.54 × 42,398.82
  4. Step 4: Simplify right side
    108,953.28x = 6,929,686,036.16
  5. Step 5: Solve for x
    x = 6,929,686,036.16/108,953.28
  6. Step 6: Final answer
    x = 63,602.36

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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.