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Finding the Fourth Proportional to 578,259.54, 867,284.79 and 157,437

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Solution

The fourth proportional to 578,259.54, 867,284.79 and 157,437 is: 236,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,259.54 : 867,284.79 = 157,437 : x
  2. Step 2: Convert to fraction form
    578,259.54/867,284.79 = 157,437/x
  3. Step 3: Cross multiply
    578,259.54x = 867,284.79 × 157,437
  4. Step 4: Simplify right side
    578,259.54x = 136,542,715,483.23
  5. Step 5: Solve for x
    x = 136,542,715,483.23/578,259.54
  6. Step 6: Final answer
    x = 236,127.04

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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.