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Finding the Fourth Proportional to 163,702.51, 245,258.26 and 68,762.76

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Solution

The fourth proportional to 163,702.51, 245,258.26 and 68,762.76 is: 103,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,702.51 : 245,258.26 = 68,762.76 : x
  2. Step 2: Convert to fraction form
    163,702.51/245,258.26 = 68,762.76/x
  3. Step 3: Cross multiply
    163,702.51x = 245,258.26 × 68,762.76
  4. Step 4: Simplify right side
    163,702.51x = 16,864,634,870.40
  5. Step 5: Solve for x
    x = 16,864,634,870.40/163,702.51
  6. Step 6: Final answer
    x = 103,020.01

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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.