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Finding the Fourth Proportional to 292,577.28, 438,624 and 134,672.64

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Solution

The fourth proportional to 292,577.28, 438,624 and 134,672.64 is: 201,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,577.28 : 438,624 = 134,672.64 : x
  2. Step 2: Convert to fraction form
    292,577.28/438,624 = 134,672.64/x
  3. Step 3: Cross multiply
    292,577.28x = 438,624 × 134,672.64
  4. Step 4: Simplify right side
    292,577.28x = 59,070,652,047.36
  5. Step 5: Solve for x
    x = 59,070,652,047.36/292,577.28
  6. Step 6: Final answer
    x = 201,897.60

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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.