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Finding the Fourth Proportional to 61,394,274.16, 84,724,368.96 and 33,892,428.40

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Solution

The fourth proportional to 61,394,274.16, 84,724,368.96 and 33,892,428.40 is: 46,771,700.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,394,274.16 : 84,724,368.96 = 33,892,428.40 : x
  2. Step 2: Convert to fraction form
    61,394,274.16/84,724,368.96 = 33,892,428.40/x
  3. Step 3: Cross multiply
    61,394,274.16x = 84,724,368.96 × 33,892,428.40
  4. Step 4: Simplify right side
    61,394,274.16x = 2,871,514,608,711,982
  5. Step 5: Solve for x
    x = 2,871,514,608,711,982/61,394,274.16
  6. Step 6: Final answer
    x = 46,771,700.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.