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Finding the Fourth Proportional to 473,619.80, 710,413.32 and 118,636.88

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Solution

The fourth proportional to 473,619.80, 710,413.32 and 118,636.88 is: 177,951.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,619.80 : 710,413.32 = 118,636.88 : x
  2. Step 2: Convert to fraction form
    473,619.80/710,413.32 = 118,636.88/x
  3. Step 3: Cross multiply
    473,619.80x = 710,413.32 × 118,636.88
  4. Step 4: Simplify right side
    473,619.80x = 84,281,219,795.24
  5. Step 5: Solve for x
    x = 84,281,219,795.24/473,619.80
  6. Step 6: Final answer
    x = 177,951.22

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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.