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Finding the Fourth Proportional to 53,892,030.60, 80,838,045.90 and 19,808,947.80

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Solution

The fourth proportional to 53,892,030.60, 80,838,045.90 and 19,808,947.80 is: 29,713,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,892,030.60 : 80,838,045.90 = 19,808,947.80 : x
  2. Step 2: Convert to fraction form
    53,892,030.60/80,838,045.90 = 19,808,947.80/x
  3. Step 3: Cross multiply
    53,892,030.60x = 80,838,045.90 × 19,808,947.80
  4. Step 4: Simplify right side
    53,892,030.60x = 1,601,316,631,487,104.25
  5. Step 5: Solve for x
    x = 1,601,316,631,487,104.25/53,892,030.60
  6. Step 6: Final answer
    x = 29,713,421.70

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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.