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Finding the Fourth Proportional to 65,324,376.72, 97,971,951.06 and 19,256,417.28

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Solution

The fourth proportional to 65,324,376.72, 97,971,951.06 and 19,256,417.28 is: 28,880,317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,324,376.72 : 97,971,951.06 = 19,256,417.28 : x
  2. Step 2: Convert to fraction form
    65,324,376.72/97,971,951.06 = 19,256,417.28/x
  3. Step 3: Cross multiply
    65,324,376.72x = 97,971,951.06 × 19,256,417.28
  4. Step 4: Simplify right side
    65,324,376.72x = 1,886,588,771,347,098.50
  5. Step 5: Solve for x
    x = 1,886,588,771,347,098.50/65,324,376.72
  6. Step 6: Final answer
    x = 28,880,317.98

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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.