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Finding the Fourth Proportional to 156,957.60, 235,436.40 and 109,718.40

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Solution

The fourth proportional to 156,957.60, 235,436.40 and 109,718.40 is: 164,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957.60 : 235,436.40 = 109,718.40 : x
  2. Step 2: Convert to fraction form
    156,957.60/235,436.40 = 109,718.40/x
  3. Step 3: Cross multiply
    156,957.60x = 235,436.40 × 109,718.40
  4. Step 4: Simplify right side
    156,957.60x = 25,831,705,109.76
  5. Step 5: Solve for x
    x = 25,831,705,109.76/156,957.60
  6. Step 6: Final answer
    x = 164,577.60

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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.