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Finding the Fourth Proportional to 159,831,222.80, 220,567,087.80 and 86,492,364.80

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Solution

The fourth proportional to 159,831,222.80, 220,567,087.80 and 86,492,364.80 is: 119,359,463.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,831,222.80 : 220,567,087.80 = 86,492,364.80 : x
  2. Step 2: Convert to fraction form
    159,831,222.80/220,567,087.80 = 86,492,364.80/x
  3. Step 3: Cross multiply
    159,831,222.80x = 220,567,087.80 × 86,492,364.80
  4. Step 4: Simplify right side
    159,831,222.80x = 19,077,369,020,871,228
  5. Step 5: Solve for x
    x = 19,077,369,020,871,228/159,831,222.80
  6. Step 6: Final answer
    x = 119,359,463.61

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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.