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Finding the Fourth Proportional to 77,312.34, 116,495.21 and 63,579.98

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Solution

The fourth proportional to 77,312.34, 116,495.21 and 63,579.98 is: 95,803.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,312.34 : 116,495.21 = 63,579.98 : x
  2. Step 2: Convert to fraction form
    77,312.34/116,495.21 = 63,579.98/x
  3. Step 3: Cross multiply
    77,312.34x = 116,495.21 × 63,579.98
  4. Step 4: Simplify right side
    77,312.34x = 7,406,763,572.08
  5. Step 5: Solve for x
    x = 7,406,763,572.08/77,312.34
  6. Step 6: Final answer
    x = 95,803.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.