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Finding the Fourth Proportional to 78,510.35, 108,304.13 and 46,222.13

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Solution

The fourth proportional to 78,510.35, 108,304.13 and 46,222.13 is: 63,762.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,510.35 : 108,304.13 = 46,222.13 : x
  2. Step 2: Convert to fraction form
    78,510.35/108,304.13 = 46,222.13/x
  3. Step 3: Cross multiply
    78,510.35x = 108,304.13 × 46,222.13
  4. Step 4: Simplify right side
    78,510.35x = 5,006,046,803.77
  5. Step 5: Solve for x
    x = 5,006,046,803.77/78,510.35
  6. Step 6: Final answer
    x = 63,762.89

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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.