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Finding the Fourth Proportional to 210,061.79, 289,883.94 and 119,417.75

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Solution

The fourth proportional to 210,061.79, 289,883.94 and 119,417.75 is: 164,795.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,061.79 : 289,883.94 = 119,417.75 : x
  2. Step 2: Convert to fraction form
    210,061.79/289,883.94 = 119,417.75/x
  3. Step 3: Cross multiply
    210,061.79x = 289,883.94 × 119,417.75
  4. Step 4: Simplify right side
    210,061.79x = 34,617,288,216.92
  5. Step 5: Solve for x
    x = 34,617,288,216.92/210,061.79
  6. Step 6: Final answer
    x = 164,795.74

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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.