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Finding the Fourth Proportional to 199,706,574.80, 299,559,862.20 and 167,457,947.60

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Solution

The fourth proportional to 199,706,574.80, 299,559,862.20 and 167,457,947.60 is: 251,186,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,706,574.80 : 299,559,862.20 = 167,457,947.60 : x
  2. Step 2: Convert to fraction form
    199,706,574.80/299,559,862.20 = 167,457,947.60/x
  3. Step 3: Cross multiply
    199,706,574.80x = 299,559,862.20 × 167,457,947.60
  4. Step 4: Simplify right side
    199,706,574.80x = 50,163,679,707,350,816
  5. Step 5: Solve for x
    x = 50,163,679,707,350,816/199,706,574.80
  6. Step 6: Final answer
    x = 251,186,921.40

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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.