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Finding the Fourth Proportional to 186,646.90, 279,970.35 and 170,317.30

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Solution

The fourth proportional to 186,646.90, 279,970.35 and 170,317.30 is: 255,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,646.90 : 279,970.35 = 170,317.30 : x
  2. Step 2: Convert to fraction form
    186,646.90/279,970.35 = 170,317.30/x
  3. Step 3: Cross multiply
    186,646.90x = 279,970.35 × 170,317.30
  4. Step 4: Simplify right side
    186,646.90x = 47,683,794,092.06
  5. Step 5: Solve for x
    x = 47,683,794,092.06/186,646.90
  6. Step 6: Final answer
    x = 255,475.95

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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.