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Finding the Fourth Proportional to 108,602.64, 162,802.98 and 42,086.16

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Solution

The fourth proportional to 108,602.64, 162,802.98 and 42,086.16 is: 63,090.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,602.64 : 162,802.98 = 42,086.16 : x
  2. Step 2: Convert to fraction form
    108,602.64/162,802.98 = 42,086.16/x
  3. Step 3: Cross multiply
    108,602.64x = 162,802.98 × 42,086.16
  4. Step 4: Simplify right side
    108,602.64x = 6,851,752,264.76
  5. Step 5: Solve for x
    x = 6,851,752,264.76/108,602.64
  6. Step 6: Final answer
    x = 63,090.11

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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.