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Finding the Fourth Proportional to 111,482.16, 153,835.20 and 66,152.34

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Solution

The fourth proportional to 111,482.16, 153,835.20 and 66,152.34 is: 91,284.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,482.16 : 153,835.20 = 66,152.34 : x
  2. Step 2: Convert to fraction form
    111,482.16/153,835.20 = 66,152.34/x
  3. Step 3: Cross multiply
    111,482.16x = 153,835.20 × 66,152.34
  4. Step 4: Simplify right side
    111,482.16x = 10,176,558,454.37
  5. Step 5: Solve for x
    x = 10,176,558,454.37/111,482.16
  6. Step 6: Final answer
    x = 91,284.19

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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.