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Finding the Fourth Proportional to 152,630.74, 210,631.04 and 84,654.06

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Solution

The fourth proportional to 152,630.74, 210,631.04 and 84,654.06 is: 116,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,630.74 : 210,631.04 = 84,654.06 : x
  2. Step 2: Convert to fraction form
    152,630.74/210,631.04 = 84,654.06/x
  3. Step 3: Cross multiply
    152,630.74x = 210,631.04 × 84,654.06
  4. Step 4: Simplify right side
    152,630.74x = 17,830,772,698.02
  5. Step 5: Solve for x
    x = 17,830,772,698.02/152,630.74
  6. Step 6: Final answer
    x = 116,822.95

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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.