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Finding the Fourth Proportional to 42,999,478.20, 60,369,330.60 and 42,999,478.20

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Solution

The fourth proportional to 42,999,478.20, 60,369,330.60 and 42,999,478.20 is: 60,369,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,999,478.20 : 60,369,330.60 = 42,999,478.20 : x
  2. Step 2: Convert to fraction form
    42,999,478.20/60,369,330.60 = 42,999,478.20/x
  3. Step 3: Cross multiply
    42,999,478.20x = 60,369,330.60 × 42,999,478.20
  4. Step 4: Simplify right side
    42,999,478.20x = 2,595,849,715,083,293
  5. Step 5: Solve for x
    x = 2,595,849,715,083,293/42,999,478.20
  6. Step 6: Final answer
    x = 60,369,330.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.