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Finding the Fourth Proportional to 93,343.62, 128,802.74 and 57,063.32

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Solution

The fourth proportional to 93,343.62, 128,802.74 and 57,063.32 is: 78,740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,343.62 : 128,802.74 = 57,063.32 : x
  2. Step 2: Convert to fraction form
    93,343.62/128,802.74 = 57,063.32/x
  3. Step 3: Cross multiply
    93,343.62x = 128,802.74 × 57,063.32
  4. Step 4: Simplify right side
    93,343.62x = 7,349,911,969.50
  5. Step 5: Solve for x
    x = 7,349,911,969.50/93,343.62
  6. Step 6: Final answer
    x = 78,740.38

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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.