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Finding the Fourth Proportional to 188,459,743.80, 282,479,663.70 and 73,406,047.80

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Solution

The fourth proportional to 188,459,743.80, 282,479,663.70 and 73,406,047.80 is: 110,027,294.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,459,743.80 : 282,479,663.70 = 73,406,047.80 : x
  2. Step 2: Convert to fraction form
    188,459,743.80/282,479,663.70 = 73,406,047.80/x
  3. Step 3: Cross multiply
    188,459,743.80x = 282,479,663.70 × 73,406,047.80
  4. Step 4: Simplify right side
    188,459,743.80x = 20,735,715,696,090,124
  5. Step 5: Solve for x
    x = 20,735,715,696,090,124/188,459,743.80
  6. Step 6: Final answer
    x = 110,027,294.31

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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.