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Finding the Fourth Proportional to 70,123.83, 105,216.57 and 36,836.16

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Solution

The fourth proportional to 70,123.83, 105,216.57 and 36,836.16 is: 55,270.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123.83 : 105,216.57 = 36,836.16 : x
  2. Step 2: Convert to fraction form
    70,123.83/105,216.57 = 36,836.16/x
  3. Step 3: Cross multiply
    70,123.83x = 105,216.57 × 36,836.16
  4. Step 4: Simplify right side
    70,123.83x = 3,875,774,407.17
  5. Step 5: Solve for x
    x = 3,875,774,407.17/70,123.83
  6. Step 6: Final answer
    x = 55,270.43

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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.