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Finding the Fourth Proportional to 176,413.55, 243,284.72 and 136,063.40

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Solution

The fourth proportional to 176,413.55, 243,284.72 and 136,063.40 is: 187,639.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,413.55 : 243,284.72 = 136,063.40 : x
  2. Step 2: Convert to fraction form
    176,413.55/243,284.72 = 136,063.40/x
  3. Step 3: Cross multiply
    176,413.55x = 243,284.72 × 136,063.40
  4. Step 4: Simplify right side
    176,413.55x = 33,102,144,274.51
  5. Step 5: Solve for x
    x = 33,102,144,274.51/176,413.55
  6. Step 6: Final answer
    x = 187,639.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.