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Finding the Fourth Proportional to 184,875, 255,126.60 and 99,990.24

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Solution

The fourth proportional to 184,875, 255,126.60 and 99,990.24 is: 137,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,875 : 255,126.60 = 99,990.24 : x
  2. Step 2: Convert to fraction form
    184,875/255,126.60 = 99,990.24/x
  3. Step 3: Cross multiply
    184,875x = 255,126.60 × 99,990.24
  4. Step 4: Simplify right side
    184,875x = 25,510,169,964.38
  5. Step 5: Solve for x
    x = 25,510,169,964.38/184,875
  6. Step 6: Final answer
    x = 137,986.04

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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.