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Finding the Fourth Proportional to 188,641,966.56, 282,989,521.92 and 65,802,368.88

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Solution

The fourth proportional to 188,641,966.56, 282,989,521.92 and 65,802,368.88 is: 98,712,822.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,641,966.56 : 282,989,521.92 = 65,802,368.88 : x
  2. Step 2: Convert to fraction form
    188,641,966.56/282,989,521.92 = 65,802,368.88/x
  3. Step 3: Cross multiply
    188,641,966.56x = 282,989,521.92 × 65,802,368.88
  4. Step 4: Simplify right side
    188,641,966.56x = 18,621,380,910,554,688
  5. Step 5: Solve for x
    x = 18,621,380,910,554,688/188,641,966.56
  6. Step 6: Final answer
    x = 98,712,822.23

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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.