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Finding the Fourth Proportional to 163,078.94, 225,051.22 and 98,539.22

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Solution

The fourth proportional to 163,078.94, 225,051.22 and 98,539.22 is: 135,985.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,078.94 : 225,051.22 = 98,539.22 : x
  2. Step 2: Convert to fraction form
    163,078.94/225,051.22 = 98,539.22/x
  3. Step 3: Cross multiply
    163,078.94x = 225,051.22 × 98,539.22
  4. Step 4: Simplify right side
    163,078.94x = 22,176,371,678.85
  5. Step 5: Solve for x
    x = 22,176,371,678.85/163,078.94
  6. Step 6: Final answer
    x = 135,985.50

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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.