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Finding the Fourth Proportional to 74,208,029.60, 103,678,904.80 and 74,208,029.60

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Solution

The fourth proportional to 74,208,029.60, 103,678,904.80 and 74,208,029.60 is: 103,678,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,208,029.60 : 103,678,904.80 = 74,208,029.60 : x
  2. Step 2: Convert to fraction form
    74,208,029.60/103,678,904.80 = 74,208,029.60/x
  3. Step 3: Cross multiply
    74,208,029.60x = 103,678,904.80 × 74,208,029.60
  4. Step 4: Simplify right side
    74,208,029.60x = 7,693,807,236,293,981
  5. Step 5: Solve for x
    x = 7,693,807,236,293,981/74,208,029.60
  6. Step 6: Final answer
    x = 103,678,904.80

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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.