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Finding the Fourth Proportional to 70,976,703.60, 99,636,123.60 and 70,976,703.60

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Solution

The fourth proportional to 70,976,703.60, 99,636,123.60 and 70,976,703.60 is: 99,636,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,976,703.60 : 99,636,123.60 = 70,976,703.60 : x
  2. Step 2: Convert to fraction form
    70,976,703.60/99,636,123.60 = 70,976,703.60/x
  3. Step 3: Cross multiply
    70,976,703.60x = 99,636,123.60 × 70,976,703.60
  4. Step 4: Simplify right side
    70,976,703.60x = 7,071,843,612,610,164
  5. Step 5: Solve for x
    x = 7,071,843,612,610,164/70,976,703.60
  6. Step 6: Final answer
    x = 99,636,123.60

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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.