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Finding the Fourth Proportional to 65,193,938.40, 97,804,029.60 and 19,135,718.40

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Solution

The fourth proportional to 65,193,938.40, 97,804,029.60 and 19,135,718.40 is: 28,707,429.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,193,938.40 : 97,804,029.60 = 19,135,718.40 : x
  2. Step 2: Convert to fraction form
    65,193,938.40/97,804,029.60 = 19,135,718.40/x
  3. Step 3: Cross multiply
    65,193,938.40x = 97,804,029.60 × 19,135,718.40
  4. Step 4: Simplify right side
    65,193,938.40x = 1,871,550,368,810,864.50
  5. Step 5: Solve for x
    x = 1,871,550,368,810,864.50/65,193,938.40
  6. Step 6: Final answer
    x = 28,707,429.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.