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Finding the Fourth Proportional to 73,366,873.60, 109,789,036.80 and 63,886,374.40

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Solution

The fourth proportional to 73,366,873.60, 109,789,036.80 and 63,886,374.40 is: 95,602,049.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,366,873.60 : 109,789,036.80 = 63,886,374.40 : x
  2. Step 2: Convert to fraction form
    73,366,873.60/109,789,036.80 = 63,886,374.40/x
  3. Step 3: Cross multiply
    73,366,873.60x = 109,789,036.80 × 63,886,374.40
  4. Step 4: Simplify right side
    73,366,873.60x = 7,014,023,510,020,178
  5. Step 5: Solve for x
    x = 7,014,023,510,020,178/73,366,873.60
  6. Step 6: Final answer
    x = 95,602,049.89

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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.