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Finding the Fourth Proportional to 118,526.54, 163,564.25 and 64,810.98

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Solution

The fourth proportional to 118,526.54, 163,564.25 and 64,810.98 is: 89,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,526.54 : 163,564.25 = 64,810.98 : x
  2. Step 2: Convert to fraction form
    118,526.54/163,564.25 = 64,810.98/x
  3. Step 3: Cross multiply
    118,526.54x = 163,564.25 × 64,810.98
  4. Step 4: Simplify right side
    118,526.54x = 10,600,759,011.41
  5. Step 5: Solve for x
    x = 10,600,759,011.41/118,526.54
  6. Step 6: Final answer
    x = 89,437.85

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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.