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Finding the Fourth Proportional to 292,047.40, 438,071.10 and 252,681.40

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Solution

The fourth proportional to 292,047.40, 438,071.10 and 252,681.40 is: 379,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,047.40 : 438,071.10 = 252,681.40 : x
  2. Step 2: Convert to fraction form
    292,047.40/438,071.10 = 252,681.40/x
  3. Step 3: Cross multiply
    292,047.40x = 438,071.10 × 252,681.40
  4. Step 4: Simplify right side
    292,047.40x = 110,692,418,847.54
  5. Step 5: Solve for x
    x = 110,692,418,847.54/292,047.40
  6. Step 6: Final answer
    x = 379,022.10

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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.