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Finding the Fourth Proportional to 210,061.55, 289,883.68 and 119,417.56

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Solution

The fourth proportional to 210,061.55, 289,883.68 and 119,417.56 is: 164,795.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,061.55 : 289,883.68 = 119,417.56 : x
  2. Step 2: Convert to fraction form
    210,061.55/289,883.68 = 119,417.56/x
  3. Step 3: Cross multiply
    210,061.55x = 289,883.68 × 119,417.56
  4. Step 4: Simplify right side
    210,061.55x = 34,617,200,726.17
  5. Step 5: Solve for x
    x = 34,617,200,726.17/210,061.55
  6. Step 6: Final answer
    x = 164,795.51

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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.