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Finding the Fourth Proportional to 195,609,985.80, 293,414,978.70 and 93,573,313.80

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Solution

The fourth proportional to 195,609,985.80, 293,414,978.70 and 93,573,313.80 is: 140,359,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,609,985.80 : 293,414,978.70 = 93,573,313.80 : x
  2. Step 2: Convert to fraction form
    195,609,985.80/293,414,978.70 = 93,573,313.80/x
  3. Step 3: Cross multiply
    195,609,985.80x = 293,414,978.70 × 93,573,313.80
  4. Step 4: Simplify right side
    195,609,985.80x = 27,455,811,875,515,416
  5. Step 5: Solve for x
    x = 27,455,811,875,515,416/195,609,985.80
  6. Step 6: Final answer
    x = 140,359,970.70

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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.