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Finding the Fourth Proportional to 111,437.94, 153,746.94 and 63,657.45

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Solution

The fourth proportional to 111,437.94, 153,746.94 and 63,657.45 is: 87,825.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,437.94 : 153,746.94 = 63,657.45 : x
  2. Step 2: Convert to fraction form
    111,437.94/153,746.94 = 63,657.45/x
  3. Step 3: Cross multiply
    111,437.94x = 153,746.94 × 63,657.45
  4. Step 4: Simplify right side
    111,437.94x = 9,787,138,145.70
  5. Step 5: Solve for x
    x = 9,787,138,145.70/111,437.94
  6. Step 6: Final answer
    x = 87,825.91

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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.