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Finding the Fourth Proportional to 97,360.80, 145,810.80 and 66,026.40

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Solution

The fourth proportional to 97,360.80, 145,810.80 and 66,026.40 is: 98,883.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,360.80 : 145,810.80 = 66,026.40 : x
  2. Step 2: Convert to fraction form
    97,360.80/145,810.80 = 66,026.40/x
  3. Step 3: Cross multiply
    97,360.80x = 145,810.80 × 66,026.40
  4. Step 4: Simplify right side
    97,360.80x = 9,627,362,205.12
  5. Step 5: Solve for x
    x = 9,627,362,205.12/97,360.80
  6. Step 6: Final answer
    x = 98,883.35

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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.