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Finding the Fourth Proportional to 156,775.94, 235,168.80 and 74,599.12

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Solution

The fourth proportional to 156,775.94, 235,168.80 and 74,599.12 is: 111,901.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,775.94 : 235,168.80 = 74,599.12 : x
  2. Step 2: Convert to fraction form
    156,775.94/235,168.80 = 74,599.12/x
  3. Step 3: Cross multiply
    156,775.94x = 235,168.80 × 74,599.12
  4. Step 4: Simplify right side
    156,775.94x = 17,543,385,531.46
  5. Step 5: Solve for x
    x = 17,543,385,531.46/156,775.94
  6. Step 6: Final answer
    x = 111,901.01

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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.