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Finding the Fourth Proportional to 93,322.88, 128,762.48 and 57,014.98

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Solution

The fourth proportional to 93,322.88, 128,762.48 and 57,014.98 is: 78,666.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,322.88 : 128,762.48 = 57,014.98 : x
  2. Step 2: Convert to fraction form
    93,322.88/128,762.48 = 57,014.98/x
  3. Step 3: Cross multiply
    93,322.88x = 128,762.48 × 57,014.98
  4. Step 4: Simplify right side
    93,322.88x = 7,341,390,221.95
  5. Step 5: Solve for x
    x = 7,341,390,221.95/93,322.88
  6. Step 6: Final answer
    x = 78,666.56

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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.