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Finding the Fourth Proportional to 155,577.90, 232,783.65 and 103,089.90

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Solution

The fourth proportional to 155,577.90, 232,783.65 and 103,089.90 is: 154,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,577.90 : 232,783.65 = 103,089.90 : x
  2. Step 2: Convert to fraction form
    155,577.90/232,783.65 = 103,089.90/x
  3. Step 3: Cross multiply
    155,577.90x = 232,783.65 × 103,089.90
  4. Step 4: Simplify right side
    155,577.90x = 23,997,643,200.14
  5. Step 5: Solve for x
    x = 23,997,643,200.14/155,577.90
  6. Step 6: Final answer
    x = 154,248.41

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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.