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Finding the Fourth Proportional to 112,584, 155,352.48 and 62,276.16

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Solution

The fourth proportional to 112,584, 155,352.48 and 62,276.16 is: 85,933.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,584 : 155,352.48 = 62,276.16 : x
  2. Step 2: Convert to fraction form
    112,584/155,352.48 = 62,276.16/x
  3. Step 3: Cross multiply
    112,584x = 155,352.48 × 62,276.16
  4. Step 4: Simplify right side
    112,584x = 9,674,755,900.88
  5. Step 5: Solve for x
    x = 9,674,755,900.88/112,584
  6. Step 6: Final answer
    x = 85,933.67

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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.