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Finding the Fourth Proportional to 177,656.67, 245,165.30 and 105,085.63

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Solution

The fourth proportional to 177,656.67, 245,165.30 and 105,085.63 is: 145,017.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,656.67 : 245,165.30 = 105,085.63 : x
  2. Step 2: Convert to fraction form
    177,656.67/245,165.30 = 105,085.63/x
  3. Step 3: Cross multiply
    177,656.67x = 245,165.30 × 105,085.63
  4. Step 4: Simplify right side
    177,656.67x = 25,763,350,004.64
  5. Step 5: Solve for x
    x = 25,763,350,004.64/177,656.67
  6. Step 6: Final answer
    x = 145,017.63

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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.