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Finding the Fourth Proportional to 186,368.40, 279,552.60 and 171,934.20

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Solution

The fourth proportional to 186,368.40, 279,552.60 and 171,934.20 is: 257,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,368.40 : 279,552.60 = 171,934.20 : x
  2. Step 2: Convert to fraction form
    186,368.40/279,552.60 = 171,934.20/x
  3. Step 3: Cross multiply
    186,368.40x = 279,552.60 × 171,934.20
  4. Step 4: Simplify right side
    186,368.40x = 48,064,652,638.92
  5. Step 5: Solve for x
    x = 48,064,652,638.92/186,368.40
  6. Step 6: Final answer
    x = 257,901.30

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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.