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Finding the Fourth Proportional to 113,482.81, 156,591.95 and 65,735.77

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Solution

The fourth proportional to 113,482.81, 156,591.95 and 65,735.77 is: 90,707.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,482.81 : 156,591.95 = 65,735.77 : x
  2. Step 2: Convert to fraction form
    113,482.81/156,591.95 = 65,735.77/x
  3. Step 3: Cross multiply
    113,482.81x = 156,591.95 × 65,735.77
  4. Step 4: Simplify right side
    113,482.81x = 10,293,692,080.37
  5. Step 5: Solve for x
    x = 10,293,692,080.37/113,482.81
  6. Step 6: Final answer
    x = 90,707.06

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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.