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Finding the Fourth Proportional to 93,888.76, 129,495.85 and 65,208.46

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Solution

The fourth proportional to 93,888.76, 129,495.85 and 65,208.46 is: 89,938.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,888.76 : 129,495.85 = 65,208.46 : x
  2. Step 2: Convert to fraction form
    93,888.76/129,495.85 = 65,208.46/x
  3. Step 3: Cross multiply
    93,888.76x = 129,495.85 × 65,208.46
  4. Step 4: Simplify right side
    93,888.76x = 8,444,224,307.41
  5. Step 5: Solve for x
    x = 8,444,224,307.41/93,888.76
  6. Step 6: Final answer
    x = 89,938.61

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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.