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Finding the Fourth Proportional to 157,445.60, 236,168.40 and 148,916.30

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Solution

The fourth proportional to 157,445.60, 236,168.40 and 148,916.30 is: 223,374.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,445.60 : 236,168.40 = 148,916.30 : x
  2. Step 2: Convert to fraction form
    157,445.60/236,168.40 = 148,916.30/x
  3. Step 3: Cross multiply
    157,445.60x = 236,168.40 × 148,916.30
  4. Step 4: Simplify right side
    157,445.60x = 35,169,324,304.92
  5. Step 5: Solve for x
    x = 35,169,324,304.92/157,445.60
  6. Step 6: Final answer
    x = 223,374.45

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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.