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Finding the Fourth Proportional to 186,330.48, 257,127.48 and 101,447.28

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Solution

The fourth proportional to 186,330.48, 257,127.48 and 101,447.28 is: 139,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,330.48 : 257,127.48 = 101,447.28 : x
  2. Step 2: Convert to fraction form
    186,330.48/257,127.48 = 101,447.28/x
  3. Step 3: Cross multiply
    186,330.48x = 257,127.48 × 101,447.28
  4. Step 4: Simplify right side
    186,330.48x = 26,084,883,459.25
  5. Step 5: Solve for x
    x = 26,084,883,459.25/186,330.48
  6. Step 6: Final answer
    x = 139,992.57

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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.