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Finding the Fourth Proportional to 225,510.78, 310,990.14 and 134,852.07

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Solution

The fourth proportional to 225,510.78, 310,990.14 and 134,852.07 is: 185,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,510.78 : 310,990.14 = 134,852.07 : x
  2. Step 2: Convert to fraction form
    225,510.78/310,990.14 = 134,852.07/x
  3. Step 3: Cross multiply
    225,510.78x = 310,990.14 × 134,852.07
  4. Step 4: Simplify right side
    225,510.78x = 41,937,664,128.59
  5. Step 5: Solve for x
    x = 41,937,664,128.59/225,510.78
  6. Step 6: Final answer
    x = 185,967.45

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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.