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Finding the Fourth Proportional to 185,657.90, 256,206.24 and 100,774.89

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Solution

The fourth proportional to 185,657.90, 256,206.24 and 100,774.89 is: 139,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,657.90 : 256,206.24 = 100,774.89 : x
  2. Step 2: Convert to fraction form
    185,657.90/256,206.24 = 100,774.89/x
  3. Step 3: Cross multiply
    185,657.90x = 256,206.24 × 100,774.89
  4. Step 4: Simplify right side
    185,657.90x = 25,819,155,653.31
  5. Step 5: Solve for x
    x = 25,819,155,653.31/185,657.90
  6. Step 6: Final answer
    x = 139,068.45

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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.