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Finding the Fourth Proportional to 152,925.66, 211,030.56 and 84,947.31

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Solution

The fourth proportional to 152,925.66, 211,030.56 and 84,947.31 is: 117,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,925.66 : 211,030.56 = 84,947.31 : x
  2. Step 2: Convert to fraction form
    152,925.66/211,030.56 = 84,947.31/x
  3. Step 3: Cross multiply
    152,925.66x = 211,030.56 × 84,947.31
  4. Step 4: Simplify right side
    152,925.66x = 17,926,478,399.79
  5. Step 5: Solve for x
    x = 17,926,478,399.79/152,925.66
  6. Step 6: Final answer
    x = 117,223.48

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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.