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Finding the Fourth Proportional to 93,808.48, 129,459.72 and 56,075.44

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Solution

The fourth proportional to 93,808.48, 129,459.72 and 56,075.44 is: 77,386.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,808.48 : 129,459.72 = 56,075.44 : x
  2. Step 2: Convert to fraction form
    93,808.48/129,459.72 = 56,075.44/x
  3. Step 3: Cross multiply
    93,808.48x = 129,459.72 × 56,075.44
  4. Step 4: Simplify right side
    93,808.48x = 7,259,510,761.28
  5. Step 5: Solve for x
    x = 7,259,510,761.28/93,808.48
  6. Step 6: Final answer
    x = 77,386.51

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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.