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Finding the Fourth Proportional to 343,888,946.30, 515,833,419.45 and 88,587,314.30

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Solution

The fourth proportional to 343,888,946.30, 515,833,419.45 and 88,587,314.30 is: 132,880,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,888,946.30 : 515,833,419.45 = 88,587,314.30 : x
  2. Step 2: Convert to fraction form
    343,888,946.30/515,833,419.45 = 88,587,314.30/x
  3. Step 3: Cross multiply
    343,888,946.30x = 515,833,419.45 × 88,587,314.30
  4. Step 4: Simplify right side
    343,888,946.30x = 45,696,297,255,260,880
  5. Step 5: Solve for x
    x = 45,696,297,255,260,880/343,888,946.30
  6. Step 6: Final answer
    x = 132,880,971.45

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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.