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Finding the Fourth Proportional to 65,070.61, 97,539.44 and 36,931.21

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Solution

The fourth proportional to 65,070.61, 97,539.44 and 36,931.21 is: 55,359.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,070.61 : 97,539.44 = 36,931.21 : x
  2. Step 2: Convert to fraction form
    65,070.61/97,539.44 = 36,931.21/x
  3. Step 3: Cross multiply
    65,070.61x = 97,539.44 × 36,931.21
  4. Step 4: Simplify right side
    65,070.61x = 3,602,249,321.16
  5. Step 5: Solve for x
    x = 3,602,249,321.16/65,070.61
  6. Step 6: Final answer
    x = 55,359.09

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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.