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Finding the Fourth Proportional to 85,294.08, 127,941.12 and 70,671.36

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Solution

The fourth proportional to 85,294.08, 127,941.12 and 70,671.36 is: 106,007.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,294.08 : 127,941.12 = 70,671.36 : x
  2. Step 2: Convert to fraction form
    85,294.08/127,941.12 = 70,671.36/x
  3. Step 3: Cross multiply
    85,294.08x = 127,941.12 × 70,671.36
  4. Step 4: Simplify right side
    85,294.08x = 9,041,772,950.32
  5. Step 5: Solve for x
    x = 9,041,772,950.32/85,294.08
  6. Step 6: Final answer
    x = 106,007.04

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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.