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Finding the Fourth Proportional to 495,034.56, 742,672.80 and 158,075.28

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Solution

The fourth proportional to 495,034.56, 742,672.80 and 158,075.28 is: 237,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,034.56 : 742,672.80 = 158,075.28 : x
  2. Step 2: Convert to fraction form
    495,034.56/742,672.80 = 158,075.28/x
  3. Step 3: Cross multiply
    495,034.56x = 742,672.80 × 158,075.28
  4. Step 4: Simplify right side
    495,034.56x = 117,398,210,808.38
  5. Step 5: Solve for x
    x = 117,398,210,808.38/495,034.56
  6. Step 6: Final answer
    x = 237,151.55

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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.