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Finding the Fourth Proportional to 303,117.10, 418,292.01 and 167,156.79

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Solution

The fourth proportional to 303,117.10, 418,292.01 and 167,156.79 is: 230,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,117.10 : 418,292.01 = 167,156.79 : x
  2. Step 2: Convert to fraction form
    303,117.10/418,292.01 = 167,156.79/x
  3. Step 3: Cross multiply
    303,117.10x = 418,292.01 × 167,156.79
  4. Step 4: Simplify right side
    303,117.10x = 69,920,349,674.25
  5. Step 5: Solve for x
    x = 69,920,349,674.25/303,117.10
  6. Step 6: Final answer
    x = 230,671.08

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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.