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Finding the Fourth Proportional to 98,495.42, 147,797.67 and 61,075.58

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Solution

The fourth proportional to 98,495.42, 147,797.67 and 61,075.58 is: 91,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,495.42 : 147,797.67 = 61,075.58 : x
  2. Step 2: Convert to fraction form
    98,495.42/147,797.67 = 61,075.58/x
  3. Step 3: Cross multiply
    98,495.42x = 147,797.67 × 61,075.58
  4. Step 4: Simplify right side
    98,495.42x = 9,026,828,417.90
  5. Step 5: Solve for x
    x = 9,026,828,417.90/98,495.42
  6. Step 6: Final answer
    x = 91,647.19

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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.