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Finding the Fourth Proportional to 162,065.68, 223,661.87 and 90,459.66

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Solution

The fourth proportional to 162,065.68, 223,661.87 and 90,459.66 is: 124,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,065.68 : 223,661.87 = 90,459.66 : x
  2. Step 2: Convert to fraction form
    162,065.68/223,661.87 = 90,459.66/x
  3. Step 3: Cross multiply
    162,065.68x = 223,661.87 × 90,459.66
  4. Step 4: Simplify right side
    162,065.68x = 20,232,376,715.16
  5. Step 5: Solve for x
    x = 20,232,376,715.16/162,065.68
  6. Step 6: Final answer
    x = 124,840.60

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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.