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Finding the Fourth Proportional to 98,968.50, 148,532.40 and 56,300.13

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Solution

The fourth proportional to 98,968.50, 148,532.40 and 56,300.13 is: 84,495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,968.50 : 148,532.40 = 56,300.13 : x
  2. Step 2: Convert to fraction form
    98,968.50/148,532.40 = 56,300.13/x
  3. Step 3: Cross multiply
    98,968.50x = 148,532.40 × 56,300.13
  4. Step 4: Simplify right side
    98,968.50x = 8,362,393,429.21
  5. Step 5: Solve for x
    x = 8,362,393,429.21/98,968.50
  6. Step 6: Final answer
    x = 84,495.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.