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Finding the Fourth Proportional to 201,560.94, 278,148.18 and 110,916.84

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Solution

The fourth proportional to 201,560.94, 278,148.18 and 110,916.84 is: 153,061.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,560.94 : 278,148.18 = 110,916.84 : x
  2. Step 2: Convert to fraction form
    201,560.94/278,148.18 = 110,916.84/x
  3. Step 3: Cross multiply
    201,560.94x = 278,148.18 × 110,916.84
  4. Step 4: Simplify right side
    201,560.94x = 30,851,317,177.35
  5. Step 5: Solve for x
    x = 30,851,317,177.35/201,560.94
  6. Step 6: Final answer
    x = 153,061.98

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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.