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Finding the Fourth Proportional to 186,360.90, 257,170.32 and 101,477.76

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Solution

The fourth proportional to 186,360.90, 257,170.32 and 101,477.76 is: 140,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,360.90 : 257,170.32 = 101,477.76 : x
  2. Step 2: Convert to fraction form
    186,360.90/257,170.32 = 101,477.76/x
  3. Step 3: Cross multiply
    186,360.90x = 257,170.32 × 101,477.76
  4. Step 4: Simplify right side
    186,360.90x = 26,097,068,012.08
  5. Step 5: Solve for x
    x = 26,097,068,012.08/186,360.90
  6. Step 6: Final answer
    x = 140,035.10

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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.