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Finding the Fourth Proportional to 155,630.60, 233,445.90 and 154,646.45

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Solution

The fourth proportional to 155,630.60, 233,445.90 and 154,646.45 is: 231,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,630.60 : 233,445.90 = 154,646.45 : x
  2. Step 2: Convert to fraction form
    155,630.60/233,445.90 = 154,646.45/x
  3. Step 3: Cross multiply
    155,630.60x = 233,445.90 × 154,646.45
  4. Step 4: Simplify right side
    155,630.60x = 36,101,579,702.06
  5. Step 5: Solve for x
    x = 36,101,579,702.06/155,630.60
  6. Step 6: Final answer
    x = 231,969.68

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1.5x scale

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.