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Finding the Fourth Proportional to 257,954.80, 386,802.60 and 117,554.80

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Solution

The fourth proportional to 257,954.80, 386,802.60 and 117,554.80 is: 176,273.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,954.80 : 386,802.60 = 117,554.80 : x
  2. Step 2: Convert to fraction form
    257,954.80/386,802.60 = 117,554.80/x
  3. Step 3: Cross multiply
    257,954.80x = 386,802.60 × 117,554.80
  4. Step 4: Simplify right side
    257,954.80x = 45,470,502,282.48
  5. Step 5: Solve for x
    x = 45,470,502,282.48/257,954.80
  6. Step 6: Final answer
    x = 176,273.14

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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.