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Finding the Fourth Proportional to 113,591.92, 156,783.57 and 70,603.88

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Solution

The fourth proportional to 113,591.92, 156,783.57 and 70,603.88 is: 97,449.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,591.92 : 156,783.57 = 70,603.88 : x
  2. Step 2: Convert to fraction form
    113,591.92/156,783.57 = 70,603.88/x
  3. Step 3: Cross multiply
    113,591.92x = 156,783.57 × 70,603.88
  4. Step 4: Simplify right side
    113,591.92x = 11,069,528,362.25
  5. Step 5: Solve for x
    x = 11,069,528,362.25/113,591.92
  6. Step 6: Final answer
    x = 97,449.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.