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Finding the Fourth Proportional to 169,653.80, 254,480.70 and 156,823.40

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Solution

The fourth proportional to 169,653.80, 254,480.70 and 156,823.40 is: 235,235.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,653.80 : 254,480.70 = 156,823.40 : x
  2. Step 2: Convert to fraction form
    169,653.80/254,480.70 = 156,823.40/x
  3. Step 3: Cross multiply
    169,653.80x = 254,480.70 × 156,823.40
  4. Step 4: Simplify right side
    169,653.80x = 39,908,528,608.38
  5. Step 5: Solve for x
    x = 39,908,528,608.38/169,653.80
  6. Step 6: Final answer
    x = 235,235.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.