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Finding the Fourth Proportional to 114,465.40, 171,698.10 and 101,780.80

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Solution

The fourth proportional to 114,465.40, 171,698.10 and 101,780.80 is: 152,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,465.40 : 171,698.10 = 101,780.80 : x
  2. Step 2: Convert to fraction form
    114,465.40/171,698.10 = 101,780.80/x
  3. Step 3: Cross multiply
    114,465.40x = 171,698.10 × 101,780.80
  4. Step 4: Simplify right side
    114,465.40x = 17,475,569,976.48
  5. Step 5: Solve for x
    x = 17,475,569,976.48/114,465.40
  6. Step 6: Final answer
    x = 152,671.20

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1.5x scale

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.