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Finding the Fourth Proportional to 78,539.34, 108,384.32 and 44,536.93

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Solution

The fourth proportional to 78,539.34, 108,384.32 and 44,536.93 is: 61,460.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,539.34 : 108,384.32 = 44,536.93 : x
  2. Step 2: Convert to fraction form
    78,539.34/108,384.32 = 44,536.93/x
  3. Step 3: Cross multiply
    78,539.34x = 108,384.32 × 44,536.93
  4. Step 4: Simplify right side
    78,539.34x = 4,827,104,872.94
  5. Step 5: Solve for x
    x = 4,827,104,872.94/78,539.34
  6. Step 6: Final answer
    x = 61,460.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.