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Finding the Fourth Proportional to 70,409,701.80, 105,614,552.70 and 48,886,341.30

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Solution

The fourth proportional to 70,409,701.80, 105,614,552.70 and 48,886,341.30 is: 73,329,511.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,409,701.80 : 105,614,552.70 = 48,886,341.30 : x
  2. Step 2: Convert to fraction form
    70,409,701.80/105,614,552.70 = 48,886,341.30/x
  3. Step 3: Cross multiply
    70,409,701.80x = 105,614,552.70 × 48,886,341.30
  4. Step 4: Simplify right side
    70,409,701.80x = 5,163,109,069,539,036
  5. Step 5: Solve for x
    x = 5,163,109,069,539,036/70,409,701.80
  6. Step 6: Final answer
    x = 73,329,511.95

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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.