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Finding the Fourth Proportional to 186,948.51, 257,994.63 and 106,387.63

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Solution

The fourth proportional to 186,948.51, 257,994.63 and 106,387.63 is: 146,818.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,948.51 : 257,994.63 = 106,387.63 : x
  2. Step 2: Convert to fraction form
    186,948.51/257,994.63 = 106,387.63/x
  3. Step 3: Cross multiply
    186,948.51x = 257,994.63 × 106,387.63
  4. Step 4: Simplify right side
    186,948.51x = 27,447,437,560.92
  5. Step 5: Solve for x
    x = 27,447,437,560.92/186,948.51
  6. Step 6: Final answer
    x = 146,818.17

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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.