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Finding the Fourth Proportional to 189,035.88, 260,869.53 and 104,154.76

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Solution

The fourth proportional to 189,035.88, 260,869.53 and 104,154.76 is: 143,733.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,035.88 : 260,869.53 = 104,154.76 : x
  2. Step 2: Convert to fraction form
    189,035.88/260,869.53 = 104,154.76/x
  3. Step 3: Cross multiply
    189,035.88x = 260,869.53 × 104,154.76
  4. Step 4: Simplify right side
    189,035.88x = 27,170,803,288.46
  5. Step 5: Solve for x
    x = 27,170,803,288.46/189,035.88
  6. Step 6: Final answer
    x = 143,733.58

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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.