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Finding the Fourth Proportional to 350,640,041.20, 525,960,061.80 and 159,163,817.20

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Solution

The fourth proportional to 350,640,041.20, 525,960,061.80 and 159,163,817.20 is: 238,745,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,640,041.20 : 525,960,061.80 = 159,163,817.20 : x
  2. Step 2: Convert to fraction form
    350,640,041.20/525,960,061.80 = 159,163,817.20/x
  3. Step 3: Cross multiply
    350,640,041.20x = 525,960,061.80 × 159,163,817.20
  4. Step 4: Simplify right side
    350,640,041.20x = 83,713,811,130,835,904
  5. Step 5: Solve for x
    x = 83,713,811,130,835,904/350,640,041.20
  6. Step 6: Final answer
    x = 238,745,725.80

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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.