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Finding the Fourth Proportional to 160,095.15, 220,931.99 and 87,499.51

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Solution

The fourth proportional to 160,095.15, 220,931.99 and 87,499.51 is: 120,749.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,095.15 : 220,931.99 = 87,499.51 : x
  2. Step 2: Convert to fraction form
    160,095.15/220,931.99 = 87,499.51/x
  3. Step 3: Cross multiply
    160,095.15x = 220,931.99 × 87,499.51
  4. Step 4: Simplify right side
    160,095.15x = 19,331,440,206.62
  5. Step 5: Solve for x
    x = 19,331,440,206.62/160,095.15
  6. Step 6: Final answer
    x = 120,749.69

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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.