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Finding the Fourth Proportional to 250,365.80, 375,038.40 and 155,304.20

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Solution

The fourth proportional to 250,365.80, 375,038.40 and 155,304.20 is: 232,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,365.80 : 375,038.40 = 155,304.20 : x
  2. Step 2: Convert to fraction form
    250,365.80/375,038.40 = 155,304.20/x
  3. Step 3: Cross multiply
    250,365.80x = 375,038.40 × 155,304.20
  4. Step 4: Simplify right side
    250,365.80x = 58,245,038,681.28
  5. Step 5: Solve for x
    x = 58,245,038,681.28/250,365.80
  6. Step 6: Final answer
    x = 232,639.76

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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.