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Finding the Fourth Proportional to 225,071.10, 310,585.59 and 123,076.26

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Solution

The fourth proportional to 225,071.10, 310,585.59 and 123,076.26 is: 169,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,071.10 : 310,585.59 = 123,076.26 : x
  2. Step 2: Convert to fraction form
    225,071.10/310,585.59 = 123,076.26/x
  3. Step 3: Cross multiply
    225,071.10x = 310,585.59 × 123,076.26
  4. Step 4: Simplify right side
    225,071.10x = 38,225,712,827.09
  5. Step 5: Solve for x
    x = 38,225,712,827.09/225,071.10
  6. Step 6: Final answer
    x = 169,838.39

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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.