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Finding the Fourth Proportional to 310,007.36, 427,780.64 and 174,010.14

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Solution

The fourth proportional to 310,007.36, 427,780.64 and 174,010.14 is: 240,117.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,007.36 : 427,780.64 = 174,010.14 : x
  2. Step 2: Convert to fraction form
    310,007.36/427,780.64 = 174,010.14/x
  3. Step 3: Cross multiply
    310,007.36x = 427,780.64 × 174,010.14
  4. Step 4: Simplify right side
    310,007.36x = 74,438,169,055.69
  5. Step 5: Solve for x
    x = 74,438,169,055.69/310,007.36
  6. Step 6: Final answer
    x = 240,117.43

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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.