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Finding the Fourth Proportional to 186,448.80, 257,394.72 and 126,337.12

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Solution

The fourth proportional to 186,448.80, 257,394.72 and 126,337.12 is: 174,409.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,448.80 : 257,394.72 = 126,337.12 : x
  2. Step 2: Convert to fraction form
    186,448.80/257,394.72 = 126,337.12/x
  3. Step 3: Cross multiply
    186,448.80x = 257,394.72 × 126,337.12
  4. Step 4: Simplify right side
    186,448.80x = 32,518,507,628.01
  5. Step 5: Solve for x
    x = 32,518,507,628.01/186,448.80
  6. Step 6: Final answer
    x = 174,409.85

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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.