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Finding the Fourth Proportional to 153,210.84, 229,822.44 and 53,381.15

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Solution

The fourth proportional to 153,210.84, 229,822.44 and 53,381.15 is: 80,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,210.84 : 229,822.44 = 53,381.15 : x
  2. Step 2: Convert to fraction form
    153,210.84/229,822.44 = 53,381.15/x
  3. Step 3: Cross multiply
    153,210.84x = 229,822.44 × 53,381.15
  4. Step 4: Simplify right side
    153,210.84x = 12,268,184,993.89
  5. Step 5: Solve for x
    x = 12,268,184,993.89/153,210.84
  6. Step 6: Final answer
    x = 80,073.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.