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Finding the Fourth Proportional to 152,903.34, 210,999.45 and 84,924.70

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Solution

The fourth proportional to 152,903.34, 210,999.45 and 84,924.70 is: 117,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,903.34 : 210,999.45 = 84,924.70 : x
  2. Step 2: Convert to fraction form
    152,903.34/210,999.45 = 84,924.70/x
  3. Step 3: Cross multiply
    152,903.34x = 210,999.45 × 84,924.70
  4. Step 4: Simplify right side
    152,903.34x = 17,919,064,991.42
  5. Step 5: Solve for x
    x = 17,919,064,991.42/152,903.34
  6. Step 6: Final answer
    x = 117,192.11

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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.